cmd/compile: use correct export function (fix debugFormat)
cmd/compile: use correct export function (fix debugFormat)

Tested with debugFormat enabled and running
(export GO_GCFLAGS=-newexport; sh all.bash).

Change-Id: If7d43e1e594ea43c644232b89e670f7abb6b003e
Reviewed-on: https://go-review.googlesource.com/22033
Reviewed-by: Matthew Dempsky <e56ac2c500064424afac424d4b5e53bd0570a731@google.com>

suncycheng/go,josharian/go,polyverse-security/go,suncycheng/go,suncycheng/go,golang/go,akutz/go,theif519/go,4ad/go,CAFxX/go,momchil-velikov/go,derekmarcotte/go,theif519/go,momchil-velikov/go,polyverse-security/go,codestation/go,vsekhar/elastic-go,akutz/go,codestation/go,theif519/go,suncycheng/go,cloudflare/go,ImJasonH/go,golang/go,goodlang/good,cloudflare/go,4ad/go,josharian/go,golang/go,Cofyc/go,christopher-henderson/Go,derekmarcotte/go,vanloswang/go,derekmarcotte/go,goodlang/good,CAFxX/go,vsekhar/elastic-go,momchil-velikov/go,ganboing/go-esx,polyverse-security/go,vanloswang/go,CAFxX/go,vanloswang/go,nawawi/go,Cofyc/go,nawawi/go,theif519/go,linux-on-ibm-z/go,vsekhar/elastic-go,josharian/go,vanloswang/go,vanloswang/go,Cofyc/go,vanloswang/go,Cofyc/go,linux-on-ibm-z/go,vanloswang/go,codestation/go,Cofyc/go,golang/go,momchil-velikov/go,momchil-velikov/go,suncycheng/go,codestation/go,Cofyc/go,goodlang/good,akutz/go,ImJasonH/go,CAFxX/go,codestation/go,cloudflare/go,CAFxX/go,codestation/go,theif519/go,linux-on-ibm-z/go,ganboing/go-esx,golang/go,nawawi/go,Cofyc/go,josharian/go,golang/go,theif519/go,golang/go,polyverse-security/go,momchil-velikov/go,nawawi/go,ganboing/go-esx,derekmarcotte/go,4ad/go,4ad/go,nawawi/go,vsekhar/elastic-go,goodlang/good,codestation/go,Cofyc/go,josharian/go,goodlang/good,ImJasonH/go,theif519/go,polyverse-security/go,ganboing/go-esx,suncycheng/go,ganboing/go-esx,ImJasonH/go,akutz/go,akutz/go,ImJasonH/go,suncycheng/go,cloudflare/go,vsekhar/elastic-go,cloudflare/go,linux-on-ibm-z/go,CAFxX/go,nawawi/go,akutz/go,CAFxX/go,josharian/go,goodlang/good,cloudflare/go,CAFxX/go,ImJasonH/go,nawawi/go,vsekhar/elastic-go,suncycheng/go,nawawi/go,ganboing/go-esx,codestation/go,derekmarcotte/go,akutz/go,josharian/go,linux-on-ibm-z/go,ganboing/go-esx,ImJasonH/go,cloudflare/go,4ad/go,josharian/go,goodlang/good,momchil-velikov/go,linux-on-ibm-z/go,linux-on-ibm-z/go,goodlang/good,polyverse-security/go,akutz/go,golang/go,vsekhar/elastic-go,ImJasonH/go,linux-on-ibm-z/go,momchil-velikov/go,derekmarcotte/go,polyverse-security/go,theif519/go,derekmarcotte/go,cloudflare/go,4ad/go,derekmarcotte/go,ganboing/go-esx,vsekhar/elastic-go,4ad/go,4ad/go,polyverse-security/go,vanloswang/go